(AP) - Rookie Cade Horton threw 6 1/3 strong innings, Pete Crow-Armstrong drove in two runs and the Chicago Cubs pulled away from the Atlanta Braves late for a 6-1 win Tuesday night.

Horton (10-4), a leading candidate for National League Rookie of the Year, allowed one run on four hits with no walks. His 2.70 ERA leads all rookies and 10 wins lead National League rookies. He pitched into the seventh inning for the third time this season.

Andrew Kittredge recorded the final two outs in the seventh, and Caleb Thielbar and Ben Brown each pitched a scoreless inning.

Crow-Armstrong went 1 for 2, walked, was hit by a pitch and had two steals. Ian Happ was 2 for 5 with a double and a run scored. Matt Shaw had a two-run single during a four-run eighth inning.

Crow-Armstrong had a sacrifice fly

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